title: A unique esophageal motor pattern that involves longitudinal muscles is responsible for emptying in achalasia esophagus (gastroenterology 2010;139:102-111).
authors.affiliation: Department of Internal Medicine, Digestive Disease Center, Medical Immunology Center, Konkuk University Medical Center, Seoul, Korea.
authors.forename: Jeong Hwan
authors.initials: JH
authors.lastname: Kim